Letter

Multiblock methods in Analytical Chemistry

Douglas N. Rutledge
Emeritus Professor at the Université Paris-Saclay, France

“Chemometrics, and multivariate data analysis in particular, has become a significant component of Analytical Chemistry because of the need to have mathematical methods capable of...”

Webinar

10th Webinar: Chemometrics applied to Liquid and Supercritical Fluid Chromatography: The new era of Analytical
Quality by Design and Mathematical Separation of Signals

Sep 10 / 14:00 (Brasilia time)
Speaker: Prof. Dr. Márcia C. Breitkreitz - Read More

Webinar

9th Webinar: From Flow Injection to Microfluidics: Our Contribution to Food and Environmental Analysis

Jul 30 / 14:00 (Brasilia time)
Speaker: Prof. Antônio Rangel - Read More

Webinar

8th Webinar: Turning Paper and other Low-Cost Materials into Analytical Sensor Devices for In-Field Applications

Jun 25 / 14:00 (Brasilia time)
Speaker: Prof. Dr. Thiago R.L.C. Paixão - Read More

Webinar

7th Webinar: Restricted Access Materials in Biological Sample Preparation for the Determination of Metals and Organic Molecules

May 26 / 14:00 (Brasilia time)
Speaker: Prof.Dr. Eduardo Figueiredo - Read more

Webinar

6th Webinar: Analytical Chemistry Driven Personalised Medicine

April 30 / 14:00 (Brasilia time)
Speaker: Prof. Dr. Jose L. Capelo - Read more

Webinar

5th Webinar: Re-Imagining Standard Additions and InternalStandardization for More Efficient Calibration Methods

March 5 / 15:00 (Brasilia time)
Speaker: Prof. Dr. George L. Donati - Read more

Webinar

4th Webinar: Portable Analytical Tools for Bioanalytical and Forensic Applications

November 26 / 14:00 (Brasilia time)
Speaker: Prof. Wendell K. T. Coltro - Read more

Webinar

3rd Webinar: Analytical Strategies for Environmental and Ecotoxicological Studies

October 30 / 14:00 (Brasilia time)
Speaker: Prof. Dr. Marco T. Grassi - Read more

Webinar

2nd Webinar: Analysis of Clinical Biomarkers by ICP-MS: From Speciation to Single-Cell Approaches

Recorded: 25 September 2020
Speaker: Prof. Dr. Maria Montes - Read more

Webinar

1st Webinar: Development and Application of Methods for the Determination of Residues and Contaminants in Food and Environmental Samples

Recorded: 6 August 2020
Speaker: Prof. Dr. Renato Zanella - Read more

Review: Promising Applications of Additive-Manufactured (3D-printed) Electrochemical Sensors for Forensic Chemistry

Sílvia V. F. Castro, Raquel G. Rocha, Afonso F. João, Eduardo M. Richter, Rodrigo A. A. Munoz

Review: GC×GC in the Characterization of the Bio-Oil from Brazilian Biomass: A Review

Rafael de Oliveira Farrapeira, Yasmine Braga Andrade, Laíza Canielas Krause, Thiago Rodrigues Bjerk, Elina Bastos Caramão and Jaderson Kleveston Schneider

Review: Forensic Analysis of Illicit Drugs and Novel Psychoactive Substances in Wastewater: A review of Toxicological, Chemical and Microbiological Aspects

Eduardo Geraldo de Campos, Elaine Cristina Pereira De Martinis, Bruno Spinosa De Martinis

Article: Activated Charcoal Pellets as an Innovative Method for Forensic Analysis of Ignitable Liquid Residues from Fire Debris by GC-MS

Lais Helena P. B. Carmona, Eduardo Geraldo Campos, Vitor Luiz C. P. Bigão, Ana Luiza C. Pereira, Flávia Duarte Maia, Laiza Silva Telles, Bruno Spinosa De Martinis

Article: Development of Carbon Paste Electrode Chemically Modified with Schiff Base Complexes for Forensic Analysis of Cocaine

Ana Beatriz Defendi da Silva, Alex Soares Castro, Marcelo Firmino de Oliveira

Article: Trends in scientific communication and continuing education in Forensic Sciences during the pandemic of COVID-19: The role of virtual conferences and experiences of the 2020 Online Congress of the Brazilian Society of Forensic Sciences

Eduardo Geraldo de Campos, Daniel Junqueira Dorta, Bruno Spinosa De Martinis

Article: Disposable Stencil-Printed Carbon Electrodes for Electrochemical Analysis of Sildenafil Citrate in Commercial and Adulterated Tablets

Danielly Santos Rocha, Habdias Araujo Silva-Neto, Laísa Cristina de Oliveira, Shellyda Gonçalves Guimarães Souza, Mário Henrique Palis Santana, Wendell Karlos Tomazelli Coltro

Article: Method Validation and Determination of Leachable Metals from Infusion and Transfusion Medical Devices

Alexandra Janine Schuh, Dirce Pozebon

Article: Development and Evaluation of two Different Electronic Tongues aiming to the Discrimination of Cutting Agents found in Cocaine Seized Samples

Thalita Guedes Silva, Thiago Regis Longo Cesar da Paixão

Article: Use of Paper Microdevices in the Identification and Quantification of Cocaine in Seized Street Samples

Jadson Zeni dos Reis, Wanderson Romão

Article: Facing the Forensic Challenge of Cannabis Regulation: A Methodology for the Differentiation between Hemp and Marijuana Samples / Presumptive and confirmatory methods for hemp and marijuana analysis

Virgínia Martins Carvalho, Fernando Gomes de Almeida, Andrey Fabiano Lourenço de Aguiar, Fernanda Cardoso dos Santos Pereira, Ernesto Díaz Rocha

Review: Chemometric Approaches in Questioned Documents

Roberta Petry Gorziza, Marina González, Carina Maria Bello de Carvalho, Rafael Scorsatto Ortiz, Marco Flores Ferrão, Renata Pereira Limberger

Article: Chromatographic Analysis of Byproducts from a Non-Toxic Ammunition and a Marked Ammunition: An Assessment of Toxicity

Aline Marcelino Arouca, Maurício Leite Vieira, Márcio Talhavini, Ingrid Távora Weber

Article: Hair mineralogram analysis for health assessment: Statistical bias from gender and aesthetic treatments

Gabrielly Peregrino, Carlos G. Massone, Adriana H. Nudi, Tatiana Dillenburg Saint’Pierre

Article: Footprint of Arsenic Contamination in Sediments and Water from Mining Sites – A case study based on multivariate optimization by GF AAS

Glenda Máris Mesquita De Filippis, Bruno Elias dos Santos Costa, Simone Soares de Oliveira Borges, Waldomiro Borges Neto, Nivia Maria Melo Coelho, Luciana Melo Coelho

Article: Carcinogenic and Non-Carcinogenic Health Risk Assessment of Heavy Metals in Njaba River, Imo State, Nigeria

Victor Chukwuemeka Eze, Chidiebere Temple Ndife, Miracle Oluebube Muogbo

Technical Note: Quantitative analysis of Δ9-THC-COOH in Human Urine by the Liquid-Liquid Extraction technique and Gas Chromatography-Mass Spectrometry: Adaptation, Optimization and Validation

Kleber Ota de Oliveira, Deborah Thais Palma Scanferla, Jordana Quaglia Pereira da Silva, Mariana Aparecida Oliveira Madia, Erika Bando, Miguel Machinski Junior, Camila Marchioni, Simone Aparecida Galerani Mossini

Review: Multivariate Curve Resolution Alternating Least Squares applied to Chromatographic Data: From the Basics to the Recent Advances

Igor Miranda Santana, Marcia Cristina Breitkreitz, Licarion Pinto

Article: Data Mining, Machine Learning, Deep Learning, Chemometrics – Definitions, common points and Trends (Spoiler Alert: VALIDATE your models!)

José Manuel Amigo

Article: Digital Images and Multivariate Calibration in the Determination of Rheological and Quality Parameters of Wheat Flour

Leticia Darlla Cordeiro, Patrícia Valderrama

Article: Monitoring Mineral-Associated Organic Matter in Tropical Pastures using Near Infrared Spectroscopy

Felipe Bachion de Santana, André Marcelo de Souza, Fabiano de Carvalho Balieiro, Mirelly Mioranza, Renato Aragão Ribeiro Rodrigues, Ronei Jesus Poppi

Article: Fast High–Resolution Mass Spectrometry and Chemometrics for Evaluation of Sensory Parameters of Commercial Coffee Blends

Victor Gustavo Kelis Cardoso, Guilherme Post Sabin, Leandro Wang Hantao

Article: The use of Chemometrics to Discriminate Sample Adulteration in Different Levels: the case of Peruvian Maca

Heloísa de Carvalho Rodrigues, Hellen Fernanda da Silva Paulino, Patrícia Valderrama, Paulo Henrique Março

Article: Raman Imaging and Chemometrics Evaluation of Natural and Synthetic Beeswaxes as Matrices for Nanostructured Lipid Carriers Development

Hery Mitsutake, Gustavo Henrique Rodrigues da Silva, Lígia Nunes de Morais Ribeiro, Eneida de Paula, Ronei J. Poppi, Douglas N. Rutledge, Márcia C. Breitkreitz

Article: Correlating Comprehensive Two-dimensional Gas Chromatography Volatile Profiles of Chocolate with Sensory Analysis

Luciana Fontes de Oliveira, Soraia Cristina Gonzaga Neves Braga, Fabio Augusto, Ronei Jesus Poppi

Article: Fingermark Analysis by Fourier Transform Infrared Microscopy Using Chemometric Tools

Marina González, Kristiane de Cássia Mariotti, Adriano de Araújo Gomes, Marco Flôres Ferrão, Renata Pereira Limberger

Article: Rapid Quantification of the Palm Kernel Biokerosene Content in Mixtures with Aviation Kerosene using MIR Spectroscopy and Multivariate Regression by PLS

Ademar Domingos Viagem Máquina, Maria Teresa Carvalho Ferreira, Edvando Souza Teles, Douglas Queiroz Santos, Waldomiro Borges Neto

Article: Soft Modelling of the Photolytic Degradation of Moxifloxacin Combining SERS Spectroscopy and Multivariate Curve Resolution

Mónica Benicia Mamián-López, Ronei J. Poppi

Article: Experimental Design to Improve Dopamine Electrochemical Detection Using Carbon Paste Electrodes

Soraya Adriane Blum, Felipe Zahrebelnei, Christiana Andrade Pessoa, Noemi Nagata, Jarem Raul Garcia, Karen Wohnrath, Valtencir Zucolotto

Chemometrics & Fast Analytics: A New Scenario in Business Intelligence

Sabin, G. P.; Hantao, L. W.; Finzi, J. K.; de Aquino, L. F. M.; Hermes, N.; Soares, C. O.

“In recent years, trends in analytical chemistry have emerged with important advances in speed, cost, intelligence and simplicity. In fact, it is a great “virtuous circle”, where...”

Consolidated analysis of soil contaminants: Four-fold increase in the sample throughput with GC-Orbitrap

The purpose of this study was to assess the quantitative performance and advantages of PAHs and PCBs using the Thermo Scientific™ Orbitrap Exploris™ GC in addition to screening of unknown soil contaminants.

Overcome Unexpected Interferences and Accelerate Environmental Analysis using Triple Quadrupole ICP-MS

This report highlights the benefits of triple quadrupole ICP-MS for the analysis of elemental contaminants in waters, waste, soils, and sediments.

Utilizing Direct Mercury Analysis for Mercury Detection in Botanical Extracts, Vitamins, Minerals and Dietary Supplements

Direct mercury analysis, as described by EPA 7473, is an alternative method to traditional techniques that requires no sample prep and delivers results in as little as 6 min per sample..

Orbitrap Exploris GC Mass Spectrometer – Expanding Analytical Power with Simplicity

Provides high-confidence detection and precise quantitation in complex matrices, with minimal method development for maximum productivity.

Thermo Scientific iCAP RQ ICP-MS – Simplicity, Productivity and Robustness for Routine Labs in Agribusiness

The ideal trace elemental analyzer for a wide range of several agricultural samples simultaneously determining trace level contaminants and macro level nutrients.

Save Time — Go Direct for Mercury Analysis

The Milestone DMA-80 has been at the forefront of Direct Total Mercury Analysis for almost two decades.

Pittcon 2022: Finally a Chance to Collaborate in Person

Reconnect with colleagues, feel the instruments, and experience the sights. Celebrate bringing together a world of knowledge to impact, enrich, and inspire the future of science. March 5-9, 2022, Georgia World Congress Center, Atlanta, GA USA.

SelectScience® Pioneers online Communication and Promotes Scientific Success

SelectScience® informs through Editorial, Q&A and Application Articles, Featured Topics, Event Coverage, Video and Webinars.

CHROMacademy is the leading provider of eLearning for analytical science

For over 10 years, CHROMacademy has increased knowledge, efficiency and productivity across all applications of chromatography.

Events

Tentative agenda of events for 2021 & 2022. It is suggested to consult the event's official website for updates.

Periodicals & Websites

Get access to reliable sources of analytical chemistry information useful for researchers and for academic, R&D and industry Labs.

Notices of Books

Scientific books on Analytical Chemistry recently launched or to be launched soon are presented here.